public boolean removeAll(Collection<?> c) { if (map == null) return false; boolean result = false; for (Object object : c) { if (remove(object)) result = true; } return result; }
public boolean removeAll(Collection<?> c) { if (map == null) return false; boolean result = false; for (Object object : c) { if (remove(object)) result = true; } return result; }
public boolean retainAll(Collection<?> c) { if (map == null) return false; boolean result = false; for (Object o : map.values()) { if (c.contains(o)) { if (remove(o)) result = true; } } return result; }
public boolean retainAll(Collection<?> c) { if (map == null) return false; boolean result = false; for (Object o : map.values()) { if (c.contains(o)) { if (remove(o)) result = true; } } return result; }